Browsing by Subject "PRECISE EFFICIENCY CALIBRATION"

Now showing items 1-3 of 3

    • Branching ratios for the beta decay of Na-21 
      Iacob, V. E.; Hardy, John C.; Gagliardi, Carl A.; Goodwin, J.; Nica, N.; Park, H. I.; Tabacaru, G.; Trache, L.; Tribble, Robert E.; Zhai, Y.; Towner, I. S. (American Physical Society, 2006)
      We have measured the beta-decay branching ratio for the transition from Na-21 to the first excited state of Ne-21. A recently published test of the standard model, which was based on a measurement of the beta-nu correlation ...
    • Further test of internal-conversion theory with a measurement in (197)Pt 
      Nica, N.; Hardy, John C.; Iacob, V. E.; Goodwin, J.; Balonek, C.; Hernberg, M.; Nolan, J.; Trzhaskovskaya, M. B. (American Physical Society, 2009)
      We have measured the K-shell internal conversion coefficient, alpha(K), for the 346.5-keV M4 transition in (197)Pt to be 4.23(7). This result differs from a previous value, which disagreed significantly from theory. Our ...
    • Test of internal-conversion theory with measurements in Cs-134 and Ba-137 
      Nica, N.; Hardy, John C.; Iacob, V. E.; Rockwell, W. E.; Trzhaskovskaya, M. B. (American Physical Society, 2007)
      We have measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in Cs-134 and the 661.7-keV M4 transition in Ba-137. Previous measurements of these alpha(K) values led to ...